Rush Skeletonweed (Lygodesmia juncea)

Photo: Matt Lavin from Bozeman, Montana, USACC BY-SA 2.0via Wikimedia Commonsresized / cropped

Rush Skeletonweed Plant Care

Lygodesmia juncea D.Don ex Hooker.

Updated · Sources · How we source care data

Lygodesmia juncea, the rush skeletonplant or just skeletonweed, is a species of flowering plant in the family Asteraceae, native to the western and central United States and western Canada. Widespread and considered somewhat weedy, it is adapted to blowing or otherwise disturbed soils, but not to fire. It is a perennial herb. Petals are pink or violet in color and flowers bloom June to September.

🌱Herbs🌼Perennials🌻Annuals
Water

Every 7–14 days

Light

Full sun to partial shade

Temp

50–80°F

Humidity

30–60%

At a glance

How do you care for Rush Skeletonweed?

Plant Rush Skeletonweed in full sun to partial shade (USDA zones 12a) and water a young shrub every 7–14 days until it is established. It tolerates temperatures of 50–80°F (10–27°C). Fertilize it every 6 months during the growing season.

Where Is the Rush Skeletonweed Native To?

Native range2 countries

What Is the Rush Skeletonweed?

Rush Skeletonweed (Lygodesmia juncea) belongs to the Asteraceae family within the Lygodesmia genus. Rush Skeletonweed is native to the western and central United States and western Canada. Rush Skeletonweed is also known as Skeletonweed, Prenanthes juncea.

Rush Skeletonweed displays a low rosette, spreading growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Rush Skeletonweed produces small daisy-like flowers in shades of pink, purple, or white.

Leaf size: approximately 2 inches.

How Often Should You Water a Rush Skeletonweed?

Water a young or newly planted Rush Skeletonweed every 7–14 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

Watering Frequency

Every 7–14 days

Until established; then in dry spells

What Light Does the Rush Skeletonweed Need?

Rush Skeletonweed thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Rush Skeletonweed Prefer?

Lygodesmia juncea tolerates temperatures of 50–80°F. Rush Skeletonweed prefers humidity levels of 30–60%.

Temperature

50–80°F

Humidity

30–60%

What Soil Mix Works Best for a Rush Skeletonweed?

Well-draining sandy soil with added organic matter for nutrients. Good drainage is essential for Rush Skeletonweed to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Rush Skeletonweed?

Feed Rush Skeletonweed every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.

Stop feeding by late summer so new growth can harden before winter.

Fertilizing

Every 6 months

During the growing season

The PlantoScan app can remind you when to water and when to fertilize each plant.

Where Should You Plant a Rush Skeletonweed?

Choose a spot with full sun to partial shade and well-draining sandy soil with added organic matter for nutrients. Avoid low spots where water collects after rain.

Rush Skeletonweed is suited to USDA Zone 12a.

Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.

How Far Apart Should You Plant a Rush Skeletonweed?

Rush Skeletonweed can spread to about 1 ft (0.3 m) and reach about 1 ft (0 m) tall. Space plants about 1 ft (0.3 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.

Planning a row or hedge? Try the plant spacing calculator.

How Do You Prune a Rush Skeletonweed?

Prune Rush Skeletonweed while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.

If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.

How Do You Care for a Rush Skeletonweed in Winter?

Rush Skeletonweed is frost-tender (hardy to USDA zone 12). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

How Do You Propagate a Rush Skeletonweed?

Rush Skeletonweed can be propagated through seeds, division of clumps.

Is the Rush Skeletonweed Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Rush Skeletonweed, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.

This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.

See all plants toxic to cats and plants toxic to dogs.

What Pests and Diseases Affect the Rush Skeletonweed?

Rush Skeletonweed is susceptible to aphids, spider mites, whiteflies. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

What USDA Hardiness Zone Does the Rush Skeletonweed Need?

Rush Skeletonweed grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Rush Skeletonweed is native to the western and central United States and western Canada. In cooler regions, grow Rush Skeletonweed as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 12a

Keep exploring plants

Rush Skeletonweed is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.

It belongs to the Lygodesmia genus — compare its care with other Lygodesmia species on PlantoScan.

Lygodesmia is part of the Asteraceae plant family — browse all Asteraceae genera and species.

Rush Skeletonweed thrives in bright light and direct sun — see other bright-light plants.

Related Plant Care Guides

Closely related plants with similar care requirements:

Sources

  • Scientific name & taxonomy: Lygodesmia juncea D.Don ex Hooker., family Asteraceae (first published in Fl. Boreali Amer. 1: 295. 1834 ; vide Vuilleumier in J. Arnold Arbor., 54(1): 57. 1973) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Rush Skeletonweed, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
  • Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, Wikimedia Commons — original.
  • Hardiness zone: USDA Zone 12a, calculated from the plant's minimum temperature.
  • Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.

Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.

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